Blackmagic Forum

Reported this problem for the last few Beta versions.

Using 2017 Macbook pro with Sonnet EGPU Breakout box thunderbolt 3 with Radeon Pro WX9100.

Render time is slow and fully rendered/cached clips play back at only 14fps dropping frames and glitchy audio. If I unplug the EGPU and play it back using stock Radeon 560 it plays back 24fps just fine.

I have uninstalled Beta 4,5,6,7 all having same issues, and installed the most recent version of Studio 15 and it plays back amazing with EGPU. The impressive part of 15 with the WX9100 is that It renders simple grades cache clip in real time playback 24fps with smooth matching audio! That being the case, it has absolutely no problem playing back fully cached clips at 24fps with no dropped frames etc.

Something is wrong with Resolve 16 EGPU support but works perfectly fine in 15. It hasn't changed in any of the betas. Each beta has been choked.

Would love to see this addressed as just having the EGPU connected immediately slow performance in 16.

Hmm I have been having loads of issues playing back BRAW on my 2017 MBP. I have a Vega 56 egpu I wonder if this has something to do with it.

Whats odd is the preview window will have the green dot and show 24fps but the playback is choppy. Ill try it without the egpu tonight.

-dan

+1 - I have a specced mid 2017 MBP with a 8gb RX580 EGPU in a Mantiz Venus case.

Playing back BRAW from Ursa Mini pro g2 will hit 22 FPS max with the EGPU connected, and GPU usage sits at about 75% for the internal GPU and 100% for the EGPU.
I've tried all configurations of ports, and GPU settings in preferences.

As soon as you unplug, the EGPU, playback is buttery smooth at 25FPS and about 70% Internal GPU usage.

Is this in the new 16.1 beta?

Anyone having issues with th Sonnet eGPU breakout Box and Beta 17? My Viewers and Video Clean Feed are playing back jittery, but all is well with my reference monitor vie Ultrastudio and exports are all good. Fine to color but completely useless to edit.